how many rolls of wallpaper are required for a room with double type variables : double « Data Types « C++ Tutorial

1.	Language Basics
2.	Data Types
3.	Operators statements
4.	Array
5.	Development
6.	Exceptions
7.	Function
8.	Structure
9.	Class
10.	Operator Overloading
11.	Pointer
12.	File Stream
13.	template
14.	STL Introduction
15.	string
16.	vector
17.	list
18.	bitset
19.	set multiset
20.	valarray
21.	queue stack
22.	deque
23.	map multimap
24.	STL Algorithms Modifying sequence operations
25.	STL Algorithms Non modifying sequence operations
26.	STL Algorithms Binary search
27.	STL Algorithms Sorting
28.	STL Algorithms Merge
29.	STL Algorithms Min Max
30.	STL Algorithms Iterator
31.	STL Algorithms Heap
32.	STL Algorithms Helper

C / ANSI-C

C Tutorial

C++

Visual C++ .NET

C++ Tutorial » Data Types » double

2.7.7.how many rolls of wallpaper are required for a room with double type variables

#include <iostream>



using namespace std;



int main()

{

  double height = 2.2, width = 3.3, length = 4.4;

  double perimeter = 0.0;                        



  double rollwidth = 21.0;                 

  double rolllength = 12.0*33.0;           



  int strips_per_roll = 0;                       

  int strips_reqd = 0;                           

  int nrolls = 0;                                





  strips_per_roll = rolllength / height;      

  perimeter = 2.0*(length + width);           

  strips_reqd = perimeter / rollwidth;        

  nrolls = strips_reqd / strips_per_roll;     



  cout << nrolls;



  return 0;

}

2.7.double
	2.7.1.	Convert feet to meters using doubles
	2.7.2.	Differences between int and double during 'divide'
	2.7.3.	Use the Pythagorean theorem to find find the length of the hypotenuse
	2.7.4.	Calculation by double variables
	2.7.5.	Compute the regular payments for a loan.
	2.7.6.	Show square roots of 1 to 99
	2.7.7.	how many rolls of wallpaper are required for a room with double type variables
	2.7.8.	Calculate the future value
	2.7.9.	Show decimal point field when displaying double and set filler
	2.7.10.	Do while loop: double value and fabs()
	2.7.11.	Compare double in if statement
	2.7.12.	Calcluate Exponents of a double value
	2.7.13.	Compare double base on precision
	2.7.14.	Use double value as the while loop counter
	2.7.15.	Check the value of a double read from keyboard

www.java2java.com | Contact Us

All other trademarks are property of their respective owners.